The Mongols destroyed flourishing civilizations like no one before or since. they engaged in destruction and extermination on a level not even the Nazis did. they murdered men women and children when it was completely unnecessary
The mongols led by Genghis Khan were very destructive in many aspects but I will name a few. First of all the mongols traveled and destroyed whole villages and territories. Secondly they were absolutely ruthless to the inhabitants and therefore murdered and terrorized them all.
The celebration of holidays helps bring people together in the name of love and compassion. It brings the communities together, and keeps everyone's minds off of problems that may be occuring.